Midterm

Question 1

What are the 2 types of data storage?

Answer 1

1. Mutable
2. Immutable

Question 2

What is mutable data storage?

Answer 2

Data that can be changed by the running program

Question 3

What kind of data are C# strings?

Answer 3

Immutable

Question 4

What is Parametric Polymorphism?

Answer 4

The use of Generic types

Question 5

What is an open type regarding generics?

Answer 5

Declaration involves a type parameter

Question 6

What is a closed type regarding generics?

Answer 6

Every aspect of the type is known precisely

Question 7

What is Unbound Form?

Answer 7

Generic type where none of the type parameters have been provided with type arguments

Question 8

What is the opposite of unbound form?

Answer 8

Bound Form or Constructed Type

Question 9

How do you specify only value types?

Answer 9

where T : struct

Question 10

How do you specify only reference types?

Answer 10

where T : class

Question 11

How do you specify the type must have a default constructor?

Answer 11

where T : new()

Question 12

What is a delegate?

Answer 12

Objectified function/method

Question 13

What 3 pieces of information are in a delegate?

Answer 13

1. Address of the method on which it makes calls
2. Parameters of the method
3. Return type of the method

Question 14

What is comparable to a delegate in C/C++?

Answer 14

Function pointer

Question 15

How do you declare a delegate?

Answer 15

delegate void MyDelegate (int x, int y);

Question 16

What are the 2 types of delegates?

Answer 16

1. Singlecast
2. Multicast

Question 17

What kind of delegate accepts one or more arguments without a return value?

Answer 17

Action<>

Question 18

What kind of delegate accepts one or more arguments and returns a value?

Answer 18

Func<>

Question 19

What is the class that raises an event called?

Answer 19

Publisher

Question 20

What is the class that handles an event called?

Answer 20

Subscriber

Question 21

What are the steps to make a publisher?

Answer 21

1. Declare a delegate
2. Declare the event

Question 22

How do you set up a subscriber?

Answer 22

The += operator
NameOfObject.NameOfEvent += new
RelatedDelegate (functionToCall);